| 摘要 |
A lid for a container that includes a first element adapted to releasably engage the container and has first and second raised seals extending from a surface of the first element. The first raised seal has a diameter that is larger than a diameter of the second raised seal. An opening is centrally disposed in the first element. A second element is engageable with the first element. The second element includes first and second raised seals extending from a surface of the second element and an opening is centrally disposed therein. The first and second raised seals are aligned with and receive the first and second seals of the first element, respectively. A chamber is defined between the surfaces of the first and second elements and between the first raised seals and the second raised seals of the first and second elements.
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